<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <appSettings>
    <add key="base1c" value="C:\1C-test" />
    <add key="user1c" value="web" />
    <add key="pswd1c" value="web" />
    <add key="port" value="8000" />
  </appSettings>
  <system.serviceModel>
    <behaviors>
      <serviceBehaviors>
        <behavior name="1c">
          <serviceMetadata httpGetEnabled="true" />
          <serviceDebug includeExceptionDetailInFaults="true" httpHelpPageEnabled="true"  />
        </behavior>
      </serviceBehaviors>
    </behaviors>
    <bindings>
      <basicHttpBinding>
        <binding name="BasicHttpBinding_IPromo" closeTimeout="00:01:00"
            openTimeout="00:01:00" receiveTimeout="00:10:00" sendTimeout="00:01:00"
            allowCookies="false" bypassProxyOnLocal="false" hostNameComparisonMode="StrongWildcard"
            maxBufferSize="6553600" maxBufferPoolSize="52428800" maxReceivedMessageSize="6553600"
            messageEncoding="Text" textEncoding="utf-8" transferMode="Buffered"
            useDefaultWebProxy="true">
          <readerQuotas maxDepth="32" maxStringContentLength="1638400" maxArrayLength="1638400"
              maxBytesPerRead="409600" maxNameTableCharCount="1638400" />
          <security mode="None">
            <transport clientCredentialType="None" proxyCredentialType="None"
                realm="" />
            <message clientCredentialType="UserName" algorithmSuite="Default" />
          </security>
        </binding>
      </basicHttpBinding>
    </bindings>
    <services>
      <service name="ServiceTestConsole.Service1" behaviorConfiguration="1c">
        <endpoint address="http://localhost:8000" binding="basicHttpBinding" bindingConfiguration="BasicHttpBinding_IPromo" contract="ServicesDLL.IService1">
        </endpoint>
      </service>
    </services>
  </system.serviceModel>
</configuration>

AddLog("start");
            try
            {
                IsRun = true;
                AddLog("start host");
                host = new ServiceHost(typeof(Service1), new Uri(string.Format("http://localhost:8000")));
                AddLog("open host");
                host.Open();
            }
            catch
            {
                EventLogger.LogItem("ex");
                return;
            }

            backgroundWorker1.RunWorkerAsync();

There was no endpoint listening at http://localhost:8000/ that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.